The two legs of a U face each other, so the room has to hold two 25½ in counters plus the aisle between them: 7 ft 9 in wall to wall for one cook and 8 ft 3 in for two, from NKBA’s 42 in and 48 in aisles. A standard fridge takes about 9¾ in of that aisle where it stands, so with full-size appliances plan on 10 ft; with 24 in apartment appliances an 8 × 10 ft U passes every check.
What a U-shaped kitchen is
Three runs of counter: one along the back wall and a leg down each side, with the open end as the way in. You get two corners and the longest counter of any layout for the floor it takes, and the work triangle stays small because the sink, range and fridge can each have a wall. The catch is width: the two legs face each other, so the aisle between them follows NKBA’s work-aisle numbers.
How wide a U-shaped kitchen has to be
| For | Aisle between the legs | Wall to wall | Source |
|---|---|---|---|
| One cook | 42 in | 7 ft 9 in | NKBA |
| Two or more cooks | 48 in | 8 ft 3 in | NKBA |
| A wheelchair user | 60 in | 9 ft 3 in | 2010 ADA Standards 804.2.2 |
Wall to wall = two 25½ in counters plus the aisle; our arithmetic. Measure the aisle from the front of whatever stands out most: a standard-depth fridge reaches 35¼ in from its wall (Samsung’s 34¼ in to the door plus 1 in behind), a counter-depth one 29¾ in.
The ADA number binds buildings the ADA covers, not private homes, but it is the best guide for a kitchen that has to work from a wheelchair: a U-shaped kitchen needs 60 in between the legs, room to turn around, where a pass-through galley needs 40 in because you can roll straight through.
- Narrowest aisle: 40¾ in
- Work triangle: 13 ft 7 in
- Counter: 11 ft 3 in
- 1 NKBA check short
8 × 10 ft, full-size appliances: 1¼ in short
The counters leave a 45 in aisle, enough for one cook. But even a counter-depth fridge stands 4¼ in past the counter, so where it faces the other leg the aisle drops to 40¾ in, under NKBA’s 42 in. Every landing area passes.
- Fix: put the fridge where it faces the open end, or use 24 in appliances (below).
- Narrowest aisle: 45 in
- Work triangle: 15 ft
- Counter: 10 ft 6 in
8 × 10 ft with 24 in appliances: passes
With the door near one corner, the right leg stops short of it and the fridge ends up facing the open floor instead of a counter. The aisle between the counters is 45 in and the triangle is 15 ft, every leg between 4 ft and 5 ft 6 in.
- Works: 10 ft 6 in of counter, more than an L of the same size.
- Watch: a 24 in fridge holds much less: Whirlpool’s is 11.6 cu ft, GE’s 36 in French-door model 26.7 cu ft. See small kitchen layouts for more space savers.
- Narrowest aisle: 59¼ in
- Work triangle: 17 ft 5 in
- Counter: 13 ft 3 in
10 × 10 ft with full-size appliances: passes
Each appliance gets its own wall: the sink on the left leg, the range across the back, the fridge at the end of the right leg. The aisle is 59¼ in even at the fridge, and the triangle is 17 ft 5 in, legs of 5 ft 5 in, 6 ft 2 in and 5 ft 10 in.
- Works: 13 ft 3 in of counter, the most of any 10 × 10 ft plan we drew.
- Watch: with the window centered on the back wall instead, the dishwasher ends up too close to a corner: the planner keeps 21 in between it and the next leg, as NKBA asks. The 10x10 layouts compare it with an L and a galley.
Two corners
A U has two inside corners, and each one hides a cabinet that is hard to reach, so most U kitchens use a lazy susan or pull-out corner fittings. Keep the dishwasher 21 in from both corners and the fridge out of them: in a corner a standard fridge stands in front of the other counter and its door can’t open past the wall. The corners still count as landing space: NKBA measures the counter along its front edge, so the counter beside the sink can run into the corner and continue on the next leg.
G-shaped kitchens: a U with a peninsula
Add a peninsula to the end of one leg and the U becomes a G: more counter, and stools on the outside. The peninsula needs its own work aisle in front of it, so the room grows to about 13 × 13 ft. G-shaped kitchens get their own page.
- Narrowest aisle: 43½ in
- Behind the stools: 48 in
- Work triangle: 17 ft 8 in
- Counter: 15 ft 3 in
13 × 13 ft G: passes
The peninsula sits 43½ in from the back counter, and the stools on its far side have 48 in behind them, enough to walk past (NKBA asks for 44 in). The triangle is 17 ft 8 in.
A U with an island
An island inside a U needs a work aisle on three sides, so the room has to be at least 15 ft 3 in wide: two 25½ in counters, two 42 in aisles and a 48 in island. The island layouts page has the room math for every layout.
- Narrowest aisle: 42 in
- Behind the stools: 36 in
- Work triangle: 17 ft 4 in
- Counter: 27 ft 3 in
16 × 12 ft U with an island: passes
The island keeps 42 in to the back counter and 43½ in to the legs, with 36 in behind the stools to edge past. The counter adds up to 27 ft 3 in, twice NKBA’s target.
Questions people ask
What is the minimum width for a U-shaped kitchen?
7 ft 9 in wall to wall for one cook, from two 25½ in counters and NKBA’s 42 in aisle, and 8 ft 3 in for two cooks. A fridge that faces the other leg needs a few inches more.
Can a U-shaped kitchen have an island?
Only in a wide room: at least 15 ft 3 in across, because the island needs a 42 in aisle to each leg as well as to the back counter.
How much room does a wheelchair user need in a U-shaped kitchen?
The 2010 ADA Standards ask for 60 in between the legs (section 804.2.2), so 9 ft 3 in wall to wall with 25½ in counters.
Is a U-shaped kitchen good for two cooks?
Yes, if the aisle is 48 in or more: each cook can have a leg. Below that, one cook works and the other passes behind.
Sources
- NKBA’s free Kitchen Planning Guidelines with Access Standards: work aisles (42 in for one cook, 48 in for two), walkways (36 in), the work triangle (each leg 4 to 9 ft, 26 ft in all), landing areas beside the sink, cooktop and fridge, the dishwasher’s place and standing room, and seating clearances. This is the older free edition; the paid 5th edition (June 2026) may change some numbers.
- 2010 ADA Standards for Accessible Design, section 804 (kitchens: 40 in in a pass-through kitchen, 60 in in a U-shaped one, a 30 × 48 in clear floor space at each appliance). They bind buildings the ADA covers, not private homes; we use them as accessible-design targets.
- Caesarstone: the standard depth of kitchen countertops, 25½ in (24 in cabinets plus a 1½ in overhang)
- Samsung “Will it fit” sheets for a counter-depth (28¾ in to the door front) and a standard-depth fridge (34¼ in to the door front); the planner adds 1 in behind, as KitchenAid’s guide asks
- 24 in and 18 in models: GE JAS640 24 in electric range (24 in opening, 25⅞ in deep without the handle), Whirlpool WRT112CZJ 24 in refrigerator (27 13/16 in deep with the doors, 1 in behind, 2¼ in on the hinge side next to a wall) and the Bosch SPE53C52UC 18 in dishwasher (a 17¾ to 18 in wide, 24 in deep opening)
- Wolf Classic Cabinetry product specifications: base cabinets 34½ in high and 24 in deep, stock widths 9 in and 12 to 42 in in 3 in steps (45 and 48 in by special order), wall cabinets 12 in deep
Checked 19 October 2026. The plans are drawn and measured by our planner; room sizes are wall to wall.